Safran Helicopter Engines

Didier Claude Chartrain

Camel Serghine

Laurent Pierre Tarnowski

Olivier Lafargue

Thomas Drouin

Jean-Michel Presse

Sébastien Combebias

Lucie Stéphanie Apostin

Pierre-Luc Regaud

Vincent Duqueine

Michael Derderian

A turboprop includes a propeller, a propeller shaft carrying the propeller, the propeller being a variable-pitch propeller having a propeller pitch, a rotating electric machine having at least a first configuration in which it is mechanically coupled to the propeller shaft and at least one oil pump configured to supply a hydraulic circuit for adjusting the pitch of the propeller. The oil pump is configured to be electrically operated. An aircraft can include such a turboprop and methods can control such a turboprop and such an aircraft.

Turboprop capable of providing a ram air turbine function and aircraft comprising such a turboprop

A propulsion unit, notably for an aircraft, including a turbomachine; a propeller that can be selectively coupled to the turbomachine; a rotary electrical machine able to drive at least the turbomachine, and selective coupling of the rotary electric machine to the propeller and/or the turbomachine that is able to couple only the propeller to the rotary electrical machine during a defined stage of operation of the propulsion unit and that is able to couple or not couple the rotary electric machine to a gas generator and/or a free turbine of the turbomachine.

Propulsion unit with selective coupling means

Growing community of inventors

Moissy Cramayel, France

Didier Claude Chartrain